baber/WOPTO huggingface dataset:
Patent GB-717245-A (GB)
Title: Improvements in annealable white iron castings and in the production of malleable iron articles therefrom
Inventor: ECKMAN HARRY ANDREWS
IPC: C22C37/10
Filed: 1951-10-29
Abstract: An annealable white iron casting has the following composition, C 2.25-3.25 per cent., Si 0.6-1.6 per cent., Mn 0.3-07 per cent., Bi 0 002-0.025 per cent., B 0.0005-0.01 per cent. and the remainder Fe. The iron is characterized by non-formation of primary graphite during solidification, the boron accelerating the decomposition of iron carbide during annealing.  Specification 569,468 is referred to.
Patent GB-203533-A (GB)
Title: Improvements in the manufacture and production of dyestuffs and intermediate products therefor
IPC: C09B3/06
Filed: 1922-09-19
Abstract: Condensation products, which are probably 2 : 21-dibenzanthronyl compounds, are prepared by heating benzanthrone or its derivatives with alkaline condensing-agents under more moderate conditions than those yielding dibenzanthrone dyes; any dye simultaneously produced is removed by means of alkaline hydrosulphite.  According to examples, benzanthrone is heated with caustic potash and ethyl or methyl alcohol, caustic potash in chlorbenzene, sodium anilide in aniline, or sodium methylanilide in methylaniline; the product forms yellow needles melting above 300 DEG  C.; 6-methylbenzanthrone gives a similar product melting above 350 DEG  C.  These condensation products are converted into dibenzanthrone dyes by heating, with or without alkaline, acid, or oxidizing condensing-agents; if free halogens or sulphuric acid are used as condensing-agents  the resulting dyes contain halogen or sulphonic groups; strongly oxidizing condensing-agents produce oxidized dibenzanthrones. According to examples:-dibenzanthrone is prepared by heating the benzanthrone condensation product described above with aluminium chloride in trichlorbenzene, mercuric sulphate and sulphuric acid, or caustic potash alone or in presence of a diluent; chlorinated dyes are obtained by heating the same condensation product with a mixture of ferric chloride and common salt, or ferric chloride in trichlorbenzene, or by dissolving the condensation product in chlorsulphonic acid and passing in chlorine.  The same condensation product is boiled with sodium anilide in aniline, or other metal arylides may be used similarly; the same condensation product is treated with fuming sulphuric acid at a low temperature, and the resulting sulphonic acid is heated with mercuric sulphate and sulphuric acid giving a dibenzanthrone sulphonic acid; the condensation product is treated with manganese dioxide in sulphuric acid, giving an oxidized dibenzanthrone compound, which on reduction with bisulphite, gives a green dye; the sulphonated condensation product described above is treated with lead peroxide in sulphuric acid.  Specifications 16538/04 and 14498/12 are referred to.
Patent GB-296696-A (GB)
Title: Improvements in connecting devices for tools of dust suction apparatus
IPC: A47L9/06
Filed: 1928-01-05
Abstract: 296,696. Inventia Patent-Verwertungs-Ges. June 28, 1927, [Convention date]. Divided on 292,939, [Class 8 (i), Air and gases, Compressing &c.]. Couplings, disconnectible; spigot-and-socket joints.-In a connecting device for the tools &c., such as horse-grooming brushes &c., of dust suction apparatus of the kind wherein a helical &c. clamping spring d is positioned in a recess f in an extension a of the tool and is adapted to grip the coned end of the suction tube, the spring d and an external retaining sleeve c therefor are anchored within the recess f by bending one end b of the spring radially' outwards and inserting it through a hole in the sleeve and into a further hole h formed in the walls of the recess.
Patent GB-285109-A (GB)
Title: Improvements in or relating to airships
IPC: B64B1/58
Filed: 1926-10-12
Abstract: 285,109. Richmond, V. C., and Scott, G. H. Oct. 12, 1926. Aerostats.-The fabric cover of a rigid or semirigid airship is tautened by forcing the cover inwards or outwards in longitudinal furrows by means of an adjustable transverse lines, or adjustable longitudinal booms. The cover, previously doped by mechanical spreading means under controlled conditions, is laced on to the airship frame and then tautened. In one arrangement, Fig. 1, the cover 5 in each panel is drawn inwards by transverse lines 3 connected to the longitudinal girders 1 at points 4 and to the cover at one or more points 6 and are tautened by tension screws or the like inserted in them, or by jacking or drawing devices between the lines and the girders. The points at which the cover is pulled in lie in rows parallel or substantially parallel to the longitudinal girders. The lines may have sliding connection to the cover so that the liner which may be continuous round the circumference of the airship may be tautened at one point in each panel or at a single point for each continuous line. Auxiliary girders, tubes, or the like 7, can be attached to the cover along the rows of connections 6, parallel to the girders 6. In a modification, Fig. 3, the cover is forced outwards by tautening lines 3 acting, on one or more reefing booms 8 in each panel. The booms do not form part of the framework, but intermediate longitudinal girders 10, Fig. 6, may be built into the framework and tautening lines 3 with or without reefing booms used at one or two points between the intermediate and main girders 10, 1. The tautening lines 3 may run from one girder to a reefing boom or the like diagonally, Fig. 8, or perpendicularly, and may run between the booms perpendicularly close together, as in Fig. 8, or spaced apart. The lines may be attached to the girders 1 at the junctions with the frames 2. Specification 225,684 is referred to. The reefing booms may have king- posts 9 to give a better lead to the lines 3, and may be discontinuous either in the planes of the transverse frames, midway between the said planes, or at the points of zero bending moment of the booms as a whole. The boom portions may be connected by detachable couplings which resist shear and torsion, but not bending, and mav comprise ears 14, Fig. 12, on the boom riveted or otherwise connected together. Longitudinal booms may be used alone to tauten the cover, by forcing them outwards by screw-jacks 16 or the like. Fig. 13, attached to the transverse frames 2. The cover may be attached to the booms. which may be held against tilting by independent lines or bands of fabric from the main girders 1. For additional stiffness. for example near the propellers. light girders attached to the booms and/or the girders 1 may be used. or a pocket in the cover may be expanded by a scoop, blower or the like.
Patent GB-853501-A (GB)
Title: Improvements in cutter mechanism for log debarking device
IPC: B27L1/05
Filed: 1959-07-23
Abstract: 853,501. Removing bark from logs. CANADIAN INGERSOLL-RAND CO. Ltd. July 23, 1959 [April 30, 1959], No. 25387/59. Class 145. In a rotary cutter for a log barking machine,. the cutter arms 38 are mounted in resilient bushings 46 in pivots which lie at an angle YY to the longitudinal axis XX of the machine so that the arms move in the direction of the entering log as they pivot. The arms are tipped with blades 40 of wear resistant material such as carbide steel and are made of light material such as aluminium to reduce their inertia and prevent them from rebounding from the log. The arms are loaded by springs 44 connected by individual adjusters 45 to a ring 30 which has a turnbuckle 58 and position indicator for angular adjustment of the ring within the inner and outer flanges 22, 24 of the main drum 20 so that the springs are collectively adjustable. The angle between the spring axis SS and the arm axis RR may initially be less than 90 degrees so that the moment arms about YY decreases as the spring becomes increasingly stressed or, to avoid high prestressing of the spring, the angle may initially be more than 90 degrees so that the moment arm increases until RR and SS become perpendicular to each other. Specification 853,502 is referred to.
Patent GB-1388757-A (GB)
Title: Fluid oscillators
IPC: F15C3/16
Filed: 1972-05-31
Abstract: 1388757 Dental syringes E V RIPPINGILLE JNR 31 May 1972 25455/72 Heading A5R [Also in Division G3] A fluid oscillator, which is designed for use with a dental syringe, comprises a fluid pressure inlet 37, 38, an elongated drain passage 44 which extends from a chamber 43 to a vent 45, (Figs. 6, 8, not shown), and an outlet passage 49, adjacent portions of the inlet 37 and of a seat member 39 defining a venturi-like passage therebetween. With diaphragm 42 spaced from seat 39, flow takes place from inlet 37 to vent 45 only. However, such position of the diaphragm is unstable on account of the greater spring force 46 acting thereagainst. Accordingly, the diaphragm moves toward the seat 39 with the last stages of such movement being facilitated by the flow to the drain 45 past a narrowing opening between the seat and diaphragm. As the diaphragm snaps onto the seat, so the inlet flow is directed into the outlet 49. Simultaneously, the fluid in drain passage 44 is accelerated so creating an inertial effect which tends to keep the diaphragm seated. After a predetermined interval of time, the inertial effect ceases to exist and the atmospheric pressure within the drain passage tends to raise the diaphragm in opposition to the extended spring. Accordingly, flow again takes place only to the drain 45 for as long as it takes spring 46 to return the diaphragm to the seat. Thus, due to the inertial effect in passage 44, the pressure within outlet 49 initially falls from a value corresponding to atmospheric pressure, then rises to above this value at the instant the diaphragm engages its seat and then falls again to atmospheric value. A mouthwash reservoir 52 may also connect with the outlet 49 via a valve 54.
Patent GB-224064-A (GB)
Title: Improvements in feeding mechanisms for sewing machines
IPC: D05B27/08
Filed: 1923-10-13
Abstract: 224,064. Armstrong, J. J. V., (Union Special Machine Co.). Oct. 13, 1923. Sewing-machines; duplex feed; feed, regulating; feed by dogs.-An auxiliary feed-dog is connected to be operated by the movements of the main feed-dog in such a manner that the extent of the feed may be varied by manual displacement of a part without stopping the machine. The main dog 14 on the arm 13 is given feed movements by an arm 16, mounted on a rocking- shaft 17 and pivoted at 15 to the arm 13. Vertical movements are given bv an arm 22 on a rocking shaft 21 engaging a block 23 beneath the arm 13. The auxiliary dog 40 is mounted on a bar 42 pivoted at 43 to the block 23 and having a slideway for a block connected by a link 41 to the pivot 15 of the arm 13. A spring-sustained arm 50 operated by a treadle is connected to the link 41 by a link 46 and may be actuated to vary the throw of the dog 40 by adjusting the position of the block in its slide.
Patent GB-780830-A (GB)
Title: An improved automatic multi-stage press
IPC: B21J9/06
Filed: 1955-09-07
Abstract: 780,830. Forging; shearing. KOCH, F. K. Sept. 7, 1955 [Sept. 13, 1954], No. 25589/55. Class 83 (4). An automatic multi-stage press for forming pressed articles, particularly bolts, from rod, comprises a horizontally reciprocating punch carriage 6, Fig. 3, carrying a plurality of vertically disposed punches 7, 7a co-operating with vertically disposed dies 8 in a stationary die-block 5, each die having an ejector 30 for discharging the pressed article therefrom, the punch carriage being mounted on the exterior of a box frame 1, feed means 18, Fig. 4, for feeding rod 19 towards the dies, a cutting device 21 for severing the blank 19a from the rod, and gripper devices 22, b, for transferring the cut-off blank to the uppermost die and for transferring the blank between successive dies. The carriage 6 is driven through a connecting-rod 15 from a crank-shaft 14 driven by gearing 17. The rod 19 is fed transversely of the carriage by feed rollers 18 and the cutting device 21 is pivotally mounted on the carriage 6 whereby upon engagement with the rod during its cutting stroke, the device will be pressed against the shearing face of the frame wall 2. A pivoted gripper device 22 then grips the cut-off blank 19a and transfers it through 90 degrees to the second gripper device b which comprises a plurality of tongs for gripping the blanks and transferring them successively through the dies. The gripper device b may be swung outwardly to provide access to the dies. The ejectors 30 are actuated through individual bellcrank levers 35 by adjustable cam members 33 on a common slide 31 driven through a rod 32 by an eccentric 17a on the driving gear 17. The bottom die 8a, Fig. 9, comprises a head trimming die through which the headed blank 23 is pushed into an ejector sleeve 25 by the punch 7a which is given an additional stroke, relative to the carriage 6, by a lever 27 engaged by a camoperated push-rod 28, Fig. 3. The ejector sleeve 25, which is actuated by one of the cam members 33 through toothed gearing 37, 38, Fig. 8 (not shown), is withdrawn rearwardly during the ejection stroke whereby the blank 23 engages a stationary rod 24 and is ejected through an aperture 26 into a discharge shoot 47, Fig. 10. The return strokes of the ejectors are limited by stops 45. An additional stroke, relative to the carriage, may also be imparted to any of the other punches 7 by means of lever and cam mechanism 40-43, Figs. 1, 2 (not shown), driven by gearing from the crank-shaft 14. A cooling liquid for the bearing surfaces 10 may be circulated through chambers 10a, Fig. 3, and the interior of the box frame may contain lubricant for the driving mechanism.
Patent GB-878735-A (GB)
Title: An improved instrument for use in lambing
IPC: A61D1/08
Filed: 1959-07-27
Abstract: 878,735. Veterinary appliances. BAINES, C. E. K. July 27, 1959, No. 25629/59. Class 81 (2). An appliance for use in assisting the delivery of lambs comprises a tubular member A with a forked end A<SP>1</SP> and with a cord B looped through the limbs of the forked end with its free ends taken through the member A and preferably brought out through an opening A<SP>111</SP> towards the lower end. The tube is made of semirigid plastic material and is inserted into the uterus so that the loop can be drawn tight around the head and feet of the lamb by pulling on the free ends of the cord.
Patent GB-1024742-A (GB)
Title: Propeller shroud-rings
Inventor: NICHOLL EDWARD JAMES
IPC: B64C11/00
Filed: 1962-07-04
Abstract: 1,024,742. Propeller shroud rings. DOWTY ROTOL Ltd. July 3, 1963 [July 4, 1962], No. 25703/62. Headings B7G and B7V] A shroud ring surrounding an aircraft propeller is retractable from an operative position in which it encircles the blades of the propeller to an inoperative position in which it is nested around the engine nacelle with which the propeller is associated. A power plant comprises engine 10 (Fig. 1, not shown), nacelle 11 and propeller 12 and a shroud ring 13 formed from a plurality of segments 14, each comprising individual sections 37, 38, 39 connected by spring-loaded hinges 41, adjoining segments 14 being locked in the extended position by locking means 42. Each segment 14 is attached to the nacelle structure by a pair of parallel links 16, 17 braced by a foldable lock strut 24 extended and retracted by a fluid pressure jack 28. A further jack 33 operates simultaneously with jack 28 so that rearward movement of links 16, 17 by jack 28 is associated with movement: of the segments 14 with respect to the links to cause the shroud ring to swing rearwardly and nest against the outer surface of the nacelle 11 in cruising flight of the aircraft.
Patent GB-503468-A (GB)
Title: Relaxation generator circuits
IPC: H03F3/28
Filed: 1938-09-02
Abstract: 503,468. Valve generating circuits. LORENZ AKT.-GES., C. Sept. 2, 1938, No. 25738. Convention date, Sept. 3, 1937. [Class 40 (v)] In an oscillator for producing symmetrical relaxation voltages by slowly charging two condensers and discharging them over a common valve, a push-pull amplifier is galvanically connected to the condensers. As shown, condensers 3, 4 are charged over resistances 1, 2 and discharged over valve 5<1>. The condensers are directly connected to the grids of the valves 6, 7 connected as a pushpull amplifier. To prevent grid current in valve 6, a very high resistance 20 is provided in the cathode lead of valve 6 which is large enough to maintain the grid of valve 6 negative relative, to the cathode and as this upsets the symmetry of the output the positive voltage applied to condenser 3 is made higher than the negative voltage applied to condenser 4, and condenser 4 is made larger than condenser 3. Valve 5<1> must be a screen grid valve to ensure an even discharge of the condensers.
Patent GB-331424-A (GB)
Title: Improvements in or relating to toy weapons
IPC: F41B9/00
Filed: 1929-08-23
Abstract: 331,424. Sadtler, W. Aug. 23, 1929. Addition to 281,656. Projectors; chemicaldischarge apparatus.- Relates to toy weapons for projecting jets of liquid, and comprises modifications of the weapon according to the parent Specification consisting in rigidly securing the cylinder of the collapsable container in the front end of the barrel, or in forming it integral therewith. As shown in Fig. 1, the collapsable container comprises a plunger slidable within a cylinder j rigidly secured within the barrel i of the pistol. The outer end of the plunger is struck, to collapse the container, by a spring-urged striker e. The spring is compressed by retracting the striker by means of arms c extending through slots in the casing. The plunger is similarly retracted by means of arms n and the container is filled through an opening m in the cylinder. As shown in Fig. 3, the plunger k is secured to the striker e and the two are retracted simultaneously by a projection q that serves also as a sight. During the retraction, liquid is drawn into the container through the discharge orifice l.
Patent GB-1086080-A (GB)
Title: Sealed reed switching system
IPC: H04L12/00
Filed: 1966-06-10
Abstract: 1,086,080. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORPORATION. June 10, 1966 [June 11, 1965], No. 25965/66. Heading H4K. Self-seeking connections across a multi-stage cross-point network are set up by marking the required or selected terminals on opposite sides of the network, all free links extending the marks from the terminals towards a central stage where the constituent matrices, if presented with a mark on both sides, activate associated AND gates to indicate those matrices of the central stage over which a path could be set up. The matrices of each stage have access over a single link to each matrix of the adjacent stages. As shown in Fig. 2 links to the central second stage matrix 27 are controlled by wires OPT and HOLD. Marks on the OPT wires from the terminal circuits, by way of bridging resistors 44, 46, and diodes 45, 47, supply inputs to AND gate 32. A lock-out chain 48 selects one of the matrices such as 27 indicating a possible path. Output from the AND gate of a selected matrix causes energization of the OPT wires to operate the ferreeds which form the cross-point elements. As seen in Fig. 5 the lower windings are employed in the OPT wire and upper windings latch the path in the HOLD wire. The potential existing on the hold wire back biases the diodes supplying the AND gate 32 so that the link is busied against seizure over the OPT wire. Diodes 87 in series with each operate winding give isolation while diodes 89 across each hold winding act to suppress sparks. Before each connection is set up a test is made so that, if an AND gate 32 is conducting out of context, a signal on lead 90 operates alarm relay 92. Demand for a path by marking terminals sets off a timer which is reset when the path is set up. If a path is not held within the timer span a second attempt may be made or an alarm set off. Where terminal circuits have appearances on both sides of the network (which becomes a so-called folded network), failure to set up a connection with one set of appearances can be followed by an attempt to find a connection using the other set of appearances.
Patent GB-287590-A (GB)
Title: Improvements in or relating to the manufacture of sugar
IPC: C13B30/06
Filed: 1926-10-18
Abstract: 287,590. Petree, C. G. Oct. 18, 1926. Freely flowing material mixed in conduits; continuousdischarge apparatus with stationary containers. - The viscosity of massecuite is reduced by the addition of hot molasses during its movement to the centrifuges so that it may be charged while the apparatus is in rotation. In one arrangement, Fig. 2, during the passage of massecuite from the container A to centrifuges B, hot molasses is fed through the chamber E<3> and sprayed into the massecuite stream which assumes a hollow tubular form on impact with the spreader E<4>, the mixture flowing directly into the centrifuges through valves D<1>. Another form of mixer comprises an outer container E<12>, Fig. 6, fed with hot molasses which passes through port E<14> into the mixing chamber receiving the massecuite through inlet E<11>.
Patent GB-1426861-A (GB)
Title: Adaptive braking system control wheel selection by coefficient comparison
IPC: B60T8/66
Filed: 1974-06-12
Abstract: 1426861 Anti-skid braking system BENDIX CORP 12 June 1974 [27 Aug 1973] 26079/74 Heading F2F An adaptive braking system for a wheeled vehicle having means for attenuating braking force applied to at least some of the wheels W 1 , W 2  of the vehicle in response to a first signal and for subsequently restoring said braking force in response to a second signal, comprises first means 10 for generating a signal related to the speed of a first vehicle wheel W 1 , second means 12 for generating a signal related to the speed of a second vehicle wheel W 2 ; and control logic means 20, 22 for generating a first group of third and fourth signals in response to the signal generated by said first means 10 and for gene-rating a second group of third and forth signrls in response to the signal generated by said second means 12. There are also provided means responsive to the simultaneous generation of third signals of said first and second groups of signals for generating said first signal aud subsequently responsive to the simultaneous generation of said fourth signals of said first and second group of signals for generating said second signal, comparator means 24, 26 for generating a comparator output signal when the speed of one of said first and second vehicle wheels is within a predetermined relationship with the speed of the other of said first and second vehicle wheels, and means responsive to said comparator output signal for applying the group of third or fourth signals, of said first or second group, generated in response to the signal related to the speed of the faster rotating of said first or second vehicle wheels, respectively, to said means for attenuating braking force, the group of third or fourth signals so applied to said means for attenuating braking force thereby comprising said first and second signals respectively. The signal responsive means comprises an AND gate 30 which provides, when triggered by two third signals, a set signal to a flip-flop 38 which thereby generates the first signal, and an OR gate 32 in series with an inverter 36 which when two fourth signals are presented to the OR gate provides a re-set signal for the flip-flop which thereby generates the second signal.